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WEST SYSTEM
G/Flex® Epoxy

G/flex 655 is a new epoxy introduced by WEST SYSTEM in mid-June 2007. G/flex is a tough, resilient epoxy engineered for a superior grip to metals, plastics, glass, masonry, fiberglass, and wet and difficult-to bond woods. G/flex 655 Thickened Epoxy Adhesive comes with a thickening agent already added. G/flex offers important features:

  • Toughness and Flexibility G/flex has been toughened. This gives G/flex the ability to make structural bonds that can absorb the stresses of expansion, contraction, shock, and vibration. G/flex is resilient and impact resistant. With a modulus of elasticity of 150,000 psi (WEST SYSTEM 105 Resin/205 Hardener has a modulus of elasticity of 450,000 psi), G/flex is more flexible and can deflect further than WEST SYSTEM 105/205, while being much stiffer than typical adhesive sealants.
  • Bonds to wet and damp surfaces G/flex has the ability to glue damp woods. It can be used on wet surfaces, even underwater when applied with specific techniques.
  • Excellent adhesion to hard-to-bond woods G/flex adheres tenaciously to difficult-to-glue hardwoods, both tropical and domestic varieties. This is important since many of the exotic and tropical species now being used to replace traditional woods present bonding challenges.
  • Bonds well to a variety of materials G/flex is ideal for bonding a variety of materials, including dissimilar ones. G/flex has a superior grip so that it can be used to bond to metals, plastics, glass, masonry, and fiberglass. G/flex is ideal for repairs to aluminum boats and polyethylene and ABS canoes and kayaks. It can also be used to wet out and bond fiberglass tapes and fabrics.
  • Ease of use G/flex is a simple two-part epoxy system. Resin and hardener are mixed in a 1:1 mix ratio by volume. G/flex provides a relatively long open working time of 45 minutes. It cures in 7-10 hours and can be used in cool temperatures. Because it is simple to mix and use, G/flex is an excellent starting point for customers new to epoxy use.
  • Versatility G/flex can be modified with WEST SYSTEM fillers and additives if you need to meet particular bonding needs. Adding G/flex to other WEST SYSTEM epoxies can improve their toughness and flexibility.
Product Models
Description WM Model # MFG Part # Availability Price Quantity  
650-2G G/flex Liquid Epoxy, 1gal. resin, 1gal. hardener 9681453 650-2G
In stock online.

$309.99

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650-32 G/flex Liquid Epoxy, 16oz. resin, 16oz. hardener 9681461 650-32
In stock online.

$72.99

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650-8 G/flex Liquid Epoxy, 4oz. resin, 4oz. hardener 9223132 650-8
In stock online.

$25.99

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G/Flex 650 Hardener 4.75 Gal. 9681511 650-CH
In stock online.

$839.00

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G/Flex 650 Resin 4.75 Gal. 9681529 650-CR
In stock online.

$459.99

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655-2G Thickened G/flex Epoxy, 1gal. resin, 1gal. hardener 9681479 655-2G
In stock online.

$349.99

Add to My List
655-2QT Thickened G/flex Epoxy, 1qt. resin, 1qt. hardener 9681487 655-2QT
In stock online.

$94.99

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655-8 Thickened G/flex Epoxy, 4oz. resin, 4oz. hardener 15537087 655-8
In stock online.

$26.99

Add to My List
G/Flex 655 Hardener 4.75 Gal. 9681495 655-CH
In stock online.

$859.00

Add to My List
G/Flex 655 Resin 4.75 Gal. 9681503 655-CR
In stock online.

$539.00

Add to My List

Product Description

G/flex 655 is a new epoxy introduced by WEST SYSTEM in mid-June 2007. G/flex is a tough, resilient epoxy engineered for a superior grip to metals, plastics, glass, masonry, fiberglass, and wet and difficult-to bond woods. G/flex 655 Thickened Epoxy Adhesive comes with a thickening agent already added. G/flex offers important features:

  • Toughness and Flexibility G/flex has been toughened. This gives G/flex the ability to make structural bonds that can absorb the stresses of expansion, contraction, shock, and vibration. G/flex is resilient and impact resistant. With a modulus of elasticity of 150,000 psi (WEST SYSTEM 105 Resin/205 Hardener has a modulus of elasticity of 450,000 psi), G/flex is more flexible and can deflect further than WEST SYSTEM 105/205, while being much stiffer than typical adhesive sealants.
  • Bonds to wet and damp surfaces G/flex has the ability to glue damp woods. It can be used on wet surfaces, even underwater when applied with specific techniques.
  • Excellent adhesion to hard-to-bond woods G/flex adheres tenaciously to difficult-to-glue hardwoods, both tropical and domestic varieties. This is important since many of the exotic and tropical species now being used to replace traditional woods present bonding challenges.
  • Bonds well to a variety of materials G/flex is ideal for bonding a variety of materials, including dissimilar ones. G/flex has a superior grip so that it can be used to bond to metals, plastics, glass, masonry, and fiberglass. G/flex is ideal for repairs to aluminum boats and polyethylene and ABS canoes and kayaks. It can also be used to wet out and bond fiberglass tapes and fabrics.
  • Ease of use G/flex is a simple two-part epoxy system. Resin and hardener are mixed in a 1:1 mix ratio by volume. G/flex provides a relatively long open working time of 45 minutes. It cures in 7-10 hours and can be used in cool temperatures. Because it is simple to mix and use, G/flex is an excellent starting point for customers new to epoxy use.
  • Versatility G/flex can be modified with WEST SYSTEM fillers and additives if you need to meet particular bonding needs. Adding G/flex to other WEST SYSTEM epoxies can improve their toughness and flexibility.

Specs

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REVIEW SNAPSHOT®

by PowerReviews
West SystemG/Flex Epoxy
 
4.8

(based on 23 reviews)

Ratings Distribution

  • 5 Stars

     

    (19)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Easy to use (20)
  • Weather proof (15)
  • Protects well (12)
  • Visually pleasing (3)

Cons

No Cons

Best Uses

  • Outdoors (10)
  • Quick fix (8)
  • Wood trim (4)
  • Indoor (3)
    • Reviewer Profile:
    • Casual/ recreational (12), Advanced (7)
    • Was this a gift?:
    • No (19)

Reviewed by 23 customers

Displaying reviews 1-10

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5.0

Are use this product for most everything I needed epoxy for

By The finisher

from ml

About Me Advanced

Verified Buyer

Pros

  • Easy to Use
  • Weather Proof

Cons

    Best Uses

    • Outdoor

    Comments about G/Flex Epoxy:

    I bought this product to repair rivets are in aluminum boat and used it on everything even to attach wood to wood

    • Was this a gift?:
    • No
     
    5.0

    Great Stuff

    By Jozef

    from Islamorada, Fla

    About Me Advanced

    Verified Buyer

    Pros

      Cons

      • A bit pricey

      Best Uses

      • Indoor
      • Marine and hobby applications
      • Outdoor

      Comments about G/Flex Epoxy:

      Lots of applications outline on detailed instructions.

      • Was this a gift?:
      • No
       
      5.0

      Good stuff for Carbon fiber to Fiberglass

      By Rob

      from Laguna

      About Me Casual/ Recreational

      Verified Buyer

      Pros

      • Easy to Use

      Cons

        Best Uses

          Comments about G/Flex Epoxy:

          Did the trick and good advice from staff

          • Was this a gift?:
          • No
           
          5.0

          Easy to use epoxy

          By Rricetc

          from Traverse City

          About Me Advanced

          Verified Buyer

          Pros

          • Easy to Use
          • Protects Well
          • Visually Pleasing
          • Weather Proof

          Cons

            Best Uses

            • Quick Fix
            • Wood Trim

            Comments about G/Flex Epoxy:

            Easy to use no complicated mixing.

            • Was this a gift?:
            • No
             
            5.0

            THIS PRODUCT STOPPED LEAKS AROUND ALUMINUM RIVETS AND SEAMS

            By DEAN

            from CAPE CORAL FL

            About Me Casual/ Recreational

            Verified Buyer

            Pros

            • Easy to Use
            • Protects Well

            Cons

              Best Uses

                Comments about G/Flex Epoxy:

                THIS PRODUCT HOLDS BOND ON ALUMINUM WITH A ROUGHENED OR ETCHED SURFACE. SEALED RIVETS AND CRACKED JOINING SEAL WITHOUT ISSUE.

                • Was this a gift?:
                • No
                 
                4.0

                I would use again

                By Ken

                from Tallahassee

                About Me Casual/ Recreational

                Verified Buyer

                Pros

                • Easy to Use
                • Protects Well
                • Weather Proof

                Cons

                  Best Uses

                  • Quick Fix

                  Comments about G/Flex Epoxy:

                  Slow curing time

                  • Was this a gift?:
                  • No

                  (1 of 1 customers found this review helpful)

                   
                  5.0

                  Great Solution!

                  By SIERRA Rocker

                  from SF Bay, CA

                  About Me Advanced

                  Verified Buyer

                  Pros

                  • Easy to Use
                  • Protects Well
                  • Weather Proof

                  Cons

                    Best Uses

                    • Quick Fix

                    Comments about G/Flex Epoxy:

                    I used this to mount some stainless plates to the inside of hull . Works great! Enough working time, not runny,,dint even smell too bad. I really liked that you can easily mix just what you need

                    • Was this a gift?:
                    • No
                     
                    5.0

                    G Flex works good

                    By Capt AI Schooner Reef Chief

                    from Key West

                    About Me Professional

                    Verified Reviewer

                    Pros

                    • Easy to Use
                    • Weather Proof

                    Cons

                      Best Uses

                      • Quick Fix

                      Comments about G/Flex Epoxy:

                      Had a small air leak in an inflatable. Tried two different glues with a patch. Followed instructions. Air found a way to blow out of the patch. Then I used West Epoxy G Flex. Worked great! Used it to glue the soles back on my girlfriend's cowboy boots , fix my son's surfboard, and dozens of other little repairs. Good stuff. The small tubes go a long way.

                      • Was this a gift?:
                      • No

                      (1 of 1 customers found this review helpful)

                       
                      5.0

                      Just what I needed

                      By Snow Hawk

                      from Wisconsin

                      About Me Professional

                      Verified Buyer

                      Pros

                      • Easy to Use

                      Cons

                        Best Uses

                        • crafts

                        Comments about G/Flex Epoxy:

                        Custom knife making. Its flexiblility is great for adhering wood knife handles to metal blade tangs. Also for setting gemstones into the wood handles.

                        • Was this a gift?:
                        • No

                        (1 of 1 customers found this review helpful)

                         
                        4.0

                        I use this all the time.

                        By Captain Crabby

                        from Bellevue, WA

                        About Me Advanced

                        Verified Buyer
                        Reviewed by a West Marine Associate

                        Pros

                        • Easy to Use
                        • Protects Well
                        • Weather Proof

                        Cons

                          Best Uses

                          • Indoor
                          • Outdoor
                          • Quick Fix
                          • Wood Trim

                          Comments about G/Flex Epoxy:

                          First, full disclosure - I am a West Marine associate. That being said, I use G-Flex all the time on our boat. This is a tough product. A few years ago I used it to fill a hinge screw hole that had partially stripped; I inserted the screw before the resin completely cured. Later, I wanted to replace the hinge with a stainless steel version and broke the screw driver tip trying get the screw out. That sold me on the product.

                          Service and delivery comments:

                          I bought it at the store.

                          • Was this a gift?:
                          • No

                          Displaying reviews 1-10

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